Document Detail


Annual birth patterns of savanna baboons (Papio cynocephalus anubis) over a ten-year period at Gilgil, Kenya.
MedLine Citation:
PMID:  8206417     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Most cercopithecines reproduce on a seasonal basis, but the proximate mechanisms influencing birth periodicity are often unclear. We analyze 10 years of data from the Gilgil Baboon Project (Kenya) in order to examine the relationship between annual birth patterns and rainfall. Savanna baboons at Gilgil copulated in all months of the year, and births did not occur on a seasonal basis. Annual rainfall patterns showed no association with annual birth patterns, but the chances of conception were significantly greater following the end of the long rainy season than at other times of the year. Nonseasonal reproduction is a general characteristic of savanna baboons (Papio cynocephalus subsp.) throughout Africa. The extreme dietary diversity of baboons enables them to utilize a wide variety of resources and facultatively manipulate the timing of different stages in the reproductive cycle in accordance with resource availability. We predict that nonseasonality of reproduction will be more likely to occur among species with a large dietary diversity than among species with a more restricted diet.
Authors:
F B Bercovitch; R S Harding
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Folia primatologica; international journal of primatology     Volume:  61     ISSN:  0015-5713     ISO Abbreviation:  Folia Primatol.     Publication Date:  1993  
Date Detail:
Created Date:  1994-07-14     Completed Date:  1994-07-14     Revised Date:  2007-11-14    
Medline Journal Info:
Nlm Unique ID:  0370723     Medline TA:  Folia Primatol (Basel)     Country:  SWITZERLAND    
Other Details:
Languages:  eng     Pagination:  115-22     Citation Subset:  IM    
Affiliation:
Caribbean Primate Research Center, University of Puerto Rico, Sabana Seca.
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MeSH Terms
Descriptor/Qualifier:
Animals
Birth Rate
Female
Fertilization / physiology
Food Supply
Kenya
Male
Papio / physiology*
Periodicity*
Pregnancy
Rain*
Reproduction / physiology*
Seasons*
Sexual Behavior, Animal
Grant Support
ID/Acronym/Agency:
RR03640/RR/NCRR NIH HHS

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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